阅读说明：本技术 一种牙周手术导板及制备方法 (Periodontal surgery guide plate and preparation method thereof ) 是由 洪菲菲 陶娴 叶琦 朱建宇 曾世昌 陈宏柏 黄文霞 于 2020-05-07 设计创作，主要内容包括：本发明公开了一种牙周手术导板及制备方法,包括包裹并附着在上颌的定长定宽导板,在所述定长定宽导板的对应上颌釉牙骨质界线位置通过卡接结构固定安装有用于抵触手术刀刀柄边缘以限制其切入深度的定深导板,所述定深导板的内部沿上颌釉牙骨质界线的横向牙龈处设置有用于提供手术刀刀刃运动空间的切口；本发明通过使用数字化技术,进行术前分析及导板制作,通过定长定宽导板以及定深导板对刀刃的走向和切入深度进行导向和限制,可以避免手术中损伤重要组织。(The invention discloses a periodontal surgery guide plate and a preparation method thereof, the periodontal surgery guide plate comprises a fixed-length and fixed-width guide plate wrapped and attached to an upper jaw, a fixed-depth guide plate used for abutting against the edge of a scalpel handle to limit the incision depth is fixedly installed at the position of a boundary line of a corresponding upper jaw enamel cementum of the fixed-length and fixed-width guide plate through a clamping structure, and a notch used for providing a scalpel blade movement space is arranged in the fixed-depth guide plate along a transverse gum of the boundary line of the upper jaw enamel cementum; the invention uses the digital technology to analyze before the operation and manufacture the guide plate, and guides and limits the trend and the cutting depth of the blade through the fixed-length and fixed-width guide plate and the fixed-depth guide plate, thereby avoiding the damage of important tissues in the operation.)

1. The utility model provides a periodontal operation baffle, its characterized in that is including parcel and attached to fixed length of upper jaw and decide wide baffle (1) the fixed length is decided corresponding upper jaw enamel cementum boundary line position of wide baffle (1) and is used for contradicting scalpel handle of a knife edge and in order to restrict its depthkeeping baffle (3) of the depth of cut of cutting into through joint structure (2) fixed mounting, the inside of depthkeeping baffle (3) is provided with incision (4) that are used for providing scalpel cutting edge motion space along the horizontal gum department of upper jaw enamel cementum boundary line.

2. A periodontal surgical guide according to claim 1, wherein the upper surface of the fixed length and width guide (1) is an uneven curved surface conforming to the midline of the maxillary palate.

3. A method for preparing a periodontal surgical guide according to any of claims 1 to 2, comprising the steps of:

step 100, obtaining a digital model: using digital equipment to carry out three-dimensional image capture on the upper jaw of the oral cavity, wherein the image capture comprises hard tissues and soft tissues, and shooting a CBCT three-dimensional image;

step 200, CAD design: importing the digital model into CAD software, unifying coordinate systems of the data after modeling the model, fitting the coordinate systems with each other, and sequentially carrying out model design on the fixed-length fixed-width guide plate and the fixed-depth guide plate;

step 300, 3D printing: and a fixed-length fixed-width guide plate and a fixed-depth guide plate are sequentially manufactured through 3D printing, and the fixed-length fixed-width guide plate and the fixed-depth guide plate are spliced to complete preparation.

4. The manufacturing method according to claim 3, wherein in step 200, the specific method for designing the fixed-length and fixed-width template model comprises the following steps:

step 201, designing a virtual target prosthesis and a gingival shape, wherein the gingival comprises an upper jaw during design;

step 202, hollowing out the virtual gum, comparing the designed virtual gum with data, opening a free shape and hollowing out the virtual gum, referring to a digital model and CBCT (cone beam computed tomography) for the length and width of the hollowed-out gum, generally setting the length and width of the hollowed-out gum from the near center of the 6 th maxillary to the far center of the 3 rd maxillary, judging and avoiding important anatomical areas by using CBCT, hollowing out and designing the concave-convex shape of the palatal midline;

and step 203, exporting the 3D printing file after the design is finished, and merging and exporting the design part and the model.

5. The manufacturing method according to claim 3, wherein in step 200, the specific method of the depth-setting guide plate model design comprises the following steps:

step 204, reestablishing the manufacturing order, importing the digital model into CAD software again, unifying coordinate systems of the data and fitting the coordinate systems after the model is modeled, importing the merged file exported in the step 203 and fitting the merged file;

step 205, using the virtual target prosthesis and the gingival shape in step 202, wherein the gingival design only comprises the virtual gingiva hollowed out in step 202;

step 206, adding height after edge design, wherein the added height is equal to the distance between periosteum in the CBCT and a scalpel blade handle;

step 207, setting a notch position, adjusting the gray scale in the CBCT to enable the cementum enamel boundary line to be presented, wherein the notch position is set to be a position where the cementum enamel boundary line is transverse to the gum;

208, hollowing the virtual gum, and hollowing the upper part of the cut, wherein the thickness is the thickness of the scalpel blade;

step 209, generating a guide plate after the completion, and adjusting the thickness of the guide plate after the generation;

and step 210, exporting after the integral design of the two guide plates is finished, typesetting after exporting, and performing 3D printing.